Graphical user interface for a medical monitor



FIG. 1 is a perspective view of a graphical user interface for a medical monitor; the broken line drawing of a medical monitor is for illustrative purposes only and forms no part of the claimed design; and,

FIG. 2 is a front elevational view thereof, on an enlarged scale. 

The ornamental design for a graphical user interface for a medical monitor, as shown and described. 